Which of the following statements is true about marginal analysis?
A. Fixed costs vary with changes in the number of units sold.
B. Total cost is the sum of average fixed costs and average variable costs times the quantity produced.
C. Average variable cost equals variable cost times number of units sold.
D. Average fixed cost increases as the number of units produced increases.
E. Marginal cost equals fixed costs minus variable costs.
Answer: B
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Which of the following about SQL is incorrect?
A. SQL is very user-friendly. B. SQL is based on relational algebra and allows a user to query and update the database. C. SQL uses SELECT statement to tell the query which columns (or attributes) of a table should be included in the query. D. SQL is a language designed to query data in a relational database.
All of the following is true of the General Agreement on Tariffs and Trade except:
A. it includes over 100 nations. B. it is one of the longest-lasting agreements on trade. C. it has extensive authority to enforce trade practices due to its voluntary membership. D. it reduces tariffs, subsidies, and import quotas.
On the ________, cash dividends become a liability of a corporation
A) declaration date B) date of record C) last day of the fiscal year D) payment date
Zoe, who works as a retail clerk, wishes to talk with her co-workers about organizing a union. Her employer forbids her from talking with other workers about union activity in the presence of customers and threatens to fire her if she joins the union. Does the employer have a legal right to make this threat to Zoe?
A) Yes, the employer may prohibit its employees from discussions about union organizing. B) Yes, but only if expressly authorized by state law. C) No, an employee has the right of free speech at anytime. D) No. An employer may limit the time and place of conversation, but may not threaten to fire the employee.